The present invention relates to a computing device, a method, and a program to provide a visual perception training based on a head mount display device. According to an embodiment of the present invention, the visual perception training providing method includes: a step (S200) in which a computer provides a first object to a first screen of the head mount display device and provides a second object to a second screen of the head mount display device; a step (S400, user control receiving step) in which the computer receives control from a user for adjusting a positional relation between the first and second objects; a step (S600, screen position changing step) in which the computer changes positions of the first and second screens in accordance with the control; and a step (S800) in which visual perception content is outputted within the patient′s visual field including a damaged vision area around the center of the sight.
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